Journal
BIOSCIENCE
Volume 70, Issue 5, Pages 427-438Publisher
OXFORD UNIV PRESS
DOI: 10.1093/biosci/biaa033
Keywords
bioassessment; connectivity; dispersal; intermittent rivers and streams; climate change
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Funding
- French research program Make Our Planet Great Again
- COST (the European Cooperation in Science and Technology) Action [CA15113]
- MECODISPER project - Spanish Ministerio de Economia, Industria y Competitividad, Agencia Estatal de Investigacion [CTM2017-89295-P]
- European Regional Development Fund
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Rapid shifts in biotic communities due to environmental variability challenge the detection of anthropogenic impacts by current biomonitoring programs. Metacommunity ecology has the potential to inform such programs, because it combines dispersal processes with niche-based approaches and recognizes variability in community composition. Using intermittent rivers-prevalent and highly dynamic ecosystems that sometimes dry-we develop a conceptual model to illustrate how dispersal limitation and flow intermittence influence the performance of biological indices. We produce a methodological framework integrating physical- and organismal-based dispersal measurements into predictive modeling, to inform development of dynamic ecological quality assessments. Such metacommunity-based approaches could be extended to other ecosystems and are required to underpin our capacity to monitor and protect ecosystems threatened under future environmental changes.
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